That may well be true, however, a lot of people, such as myself do not have the $$$ to dump on a part that may very well be good already, and you cannot return the part that you bought after it's used anyway.
Everyone I know, myself included has had good service with the GPR 109,(that have had the OEM part fail) it might be cheaply made, but the price reflects that, and the ford unit that is $100+ or however much it is, seems to fail just as often as the $25 one.
I'd much rather pay $25 twice in the lifetime of the truck than pay $100+ twice.
The GPR went out in our truck almost 3 years ago, and I replaced it with the GPR 109, and have not had a problem with it yet, granted now that I'm talking about the sucker, it'll go out
Will I buy the ford part, or the other Napa one that's much more expensive? No I will not.
That being said, each person has their opinion, I have mine, you have yours, the person who tore one apart, he has proof they are made cheaper, (again i don't doubt this one iota, considering the price)
I suppose it's kinda akin to ceiling fans, which is what I do- I restore the antique ones. You have your vintage Hunter Original Ceiling fan that uses oil for lubrication, has ran for 80 years already, and will probably run for another 300 years.. this is our diesel engine.
You have your Home Depot special ceiling fan that costs you $250 because it looks "pretty" (although i'd argue that till my death..) Then you have your $30 Home Depot Special, costs much less, of course, and is really built the same, as the $250 fan, but might be noisy and not work as good as the $250 one, however, it gets the job done, and 5 years down the road it croaks, and you put another one up. The home depot fans, they all, use basically the same motor internals, same grade of bearings, etc.. No matter how much you pay, it's still going to last around the same amount of time, depending on what type of uses the item may or may not see.
This will apply to the GPRs also. If you live in florida, your GPR does not have to engage that long, and will see less use, and will last much, much longer than the same GPR in Maine for instance. In florida, you may never even know your GPR has gone out for that matter (that is until you happen to travel to maine, haha)
The GPR 109 will last long enough in my honest opinion, to justify paying the lesser price, also considering, that in the event it does fail, you just bridge the two big terminals for about 20 seconds and start the engine.
Also, if the GPR was a mission critical item... that could be hazardous if it failed for instance... if there was a cheap version of the CPS that cost only $25
I would not even consider recommending the cheap version of that, just because it is a mission critical part.
Take Care Man